Are you looking for a way to make your Microsoft Excel formulas simpler, faster and more efficient? If so, you're in the right place. With this free video lesson from everyone's favorite digital spreadsheet guru, YouTube's ExcelsFun, the 10th installment in his "Excel Formula Efficiency" series, you'll learn how to use Manual Calculation for huge spreadsheets so that recalculation only occurs when you want it to occur.

Learn how to speed up slow calculating spreadsheets with formulas that calculate faster. See many methods to speed up your spreadsheet decrease the amount of time it takes for the formulas to calculate. In this video series you will see tricks for both Excel 2003 and Excel 2007. Many of the large formulas in this series involve multi-conditional multiple criteria calculations that slow down the spreadsheet (worksheet, workbook).